The 21cm Signal
The 21cm Signal
The 21cm Signal
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Correlation Distance<br />
Correlation distance: distance:<br />
Δνwhere Δνwhere<br />
Corr(ν, Corr( , ν+Δν Δν) ) falls<br />
below threshold.<br />
Evolution during reionization:<br />
increases from ~200 kHz to<br />
~1 MHz (3’ resolution):<br />
formation of larger HII<br />
regions<br />
Foregrounds correlated over<br />
the entire frequency range!<br />
114/h Mpc simulation<br />
3’ resolution<br />
26 April 2012 EoR2012, Strasbourg 18
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